The Trump administration is also ending federal requirements that push car makers to produce more low-emission models.Start ...

Northern Arizona is famous for its aspen trees, and a multi-decade study looks into how they’re being affected by climate ...

First-week orders could undermine progress on clean energy investments, pollute the air and add few benefits to the economy, ...

Most climate scientists are certain that global warming has played a critical role in the California wildfires, despite political posturing.

A Republican wants to change Arizona law to ban “geoengineering” in the state aimed at addressing the rapid effects of ...

The Phoenix mayor said withdrawing from the global agreement to fight climate change would harm public health and economic ...

The orders could affect Arizona through their impact on climate change and potential harm to the electric vehicle industry. There are no significant proven oil or gas reserves in Arizona ...